export  function checkIdcard(idcard){
  var ereg = "";
  idcard = idcard.toString();
  //var Errors=new Array("验证通过!","身份证号码位数不对!","身份证号码出生日期超出范围或含有非法字符!","身份证号码校验错误!","身份证地区非法!");
  var Errors=new Array(true,false,false,false,false);
  var area={11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"}
  var idcard,Y,JYM;
  var S,M;
  var idcard_array = new Array();
  idcard_array = idcard.split("");
  //地区检验
  if(area[parseInt(idcard.substr(0,2))]==null) return Errors[4];
  //身份号码位数及格式检验
  switch(idcard.length){
    case 15:
      if ( (parseInt(idcard.substr(6,2))+1900) % 4 == 0 || ((parseInt(idcard.substr(6,2))+1900) % 100 == 0 && (parseInt(idcard.substr(6,2))+1900) % 4 == 0 )){
        ereg=/^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$/;//测试出生日期的合法性
      } else {
        ereg=/^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/;//测试出生日期的合法性
      }
      if(ereg.test(idcard)) return Errors[0];
      else return Errors[2];
      break;
    case 18:
      //18 位身份号码检测
      //出生日期的合法性检查
      //闰年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))
      //平年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))
      if ( parseInt(idcard.substr(6,4)) % 4 == 0 || (parseInt(idcard.substr(6,4)) % 100 == 0 && parseInt(idcard.substr(6,4))%4 == 0 )){
        ereg=/^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$/;//闰年出生日期的合法性正则表达式
      } else {
        ereg=/^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/;//平年出生日期的合法性正则表达式
      }
      if(ereg.test(idcard)) {//测试出生日期的合法性
        //计算校验位
        S = (parseInt(idcard_array[0]) + parseInt(idcard_array[10])) * 7
          + (parseInt(idcard_array[1]) + parseInt(idcard_array[11])) * 9
          + (parseInt(idcard_array[2]) + parseInt(idcard_array[12])) * 10
          + (parseInt(idcard_array[3]) + parseInt(idcard_array[13])) * 5
          + (parseInt(idcard_array[4]) + parseInt(idcard_array[14])) * 8
          + (parseInt(idcard_array[5]) + parseInt(idcard_array[15])) * 4
          + (parseInt(idcard_array[6]) + parseInt(idcard_array[16])) * 2
          + parseInt(idcard_array[7]) * 1
          + parseInt(idcard_array[8]) * 6
          + parseInt(idcard_array[9]) * 3 ;
        Y = S % 11;
        M = "F";
        JYM = "10X98765432";
        M = JYM.substr(Y,1);//判断校验位
        if(M == idcard_array[17]) return Errors[0]; //检测ID的校验位
        else return Errors[3];
      }
      else return Errors[2];
      break;
    default:
      return Errors[1];
      break;
  }
}
